810226256 has 160 divisors (see below), whose sum is σ = 1984372992. Its totient is φ = 312606720.

The previous prime is 810226237. The next prime is 810226301. The reversal of 810226256 is 652622018.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7572155 + ... + 7572261.

Almost surely, 2^810226256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 810226256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (992186496).

810226256 is an abundant number, since it is smaller than the sum of its proper divisors (1174146736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

810226256 is a wasteful number, since it uses less digits than its factorization.

810226256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 810226256 is about 28464.4735767237. The cubic root of 810226256 is about 932.2565375330.

It can be divided in two parts, 81022 and 6256, that added together give a palindrome (87278).

The spelling of 810226256 in words is "eight hundred ten million, two hundred twenty-six thousand, two hundred fifty-six".